Note: The pooled results and those for each single category (salary, no salary, young, old, men, women) were tested using a binomial test to determine if the frequency differed from that expected if choices were made randomly. Opposing categories (salary versus no salary, young versus old, men versus women) were compared using a G test. For the second prize, the sum of gunpowder and shot and cartridges was compared with the sum of rice and tuna fish and rooster and eggs. *P < 0.05 with no Bonferroni adjustment, non-significant with Bonferroni adjustment; **P < 0.05 with sequential Bonferroni adjustment.